Container



Aug. 12, 1947. I l. 1.. wlLcox 2,425,708

CONTAINER Filed Aug. 18, 1944 INVENTOR:

Isaac L. 77700;

ATTORNEYS Patented Aug. l2, 1947 UNITED STATES. PATENT I OFFICECONTAINER Isaac L. Wilcox, Fulton, N. Y., assignor to Oswego FallsCorporation, Fulton, N. Y., a corporation of New York Application August18, 1944, Serial No. 550,057

z Claims. (o1. 229-55) This invention relates to containers formed ofsheet material such as paperboard, and has as an object an end closurestructure which is particularly strong and durable, whereby thecontainer, although formed of relatively low strength material, willeffectively withstand rough hancharacters designate correspondingpartsin all the views. v I

Figure 1 is a side elevational view of a container embodying myinvention. 7

Figure 2 is a top plan view of the container shown in Figure 1.

Figure 3 is a fragmentary sectional view of the top portion of thecontainer taken on line 3-3, Figure 1. l

The body of the container is of tubular formation, rectangular in crosssection, and is provided with a suitable bottom end closure ii. The topclosure I2 is formed about its periphceive the end edge of the body"!and enclose the same. The channel I3 is sealed to the end of the body.Usually, if the container is formed of fibrous material, such aspaperboard, at least the interior of the body and the inner surface ofthe closure l2 and channel l3, and preferably the exterior surfacesthereof as well, are coated with an impervious, heat-sealing materialwhich renders the container impervious to moisture and this coating, atthe same time, affords a convenient means of permanently sealing theinner and outer walls of the channel l3 to the top edge of the body.

The sides of the channel formation adjacent each corner are pressed orpinched together to form corner ribs l5. If the outer surface of the endclosure is coated with the thermoplastic macry with an inverted channell3 adaptedto reterial, this pressing action is done with heated tools,whereby the portions of the channel pressed together to form the ribs I5are permanently secured together. The channel l3, intermediate thecorners, is inclined inwardly as at I6.

This arrangement forms a truss structure which his strong and rigid andaffords particularly good protection at the corners of the end closurewhich, with ordinary construction, often open up or leak in the eventthe container is dropped after it has been filled with liquid, or otherheavy contents.

What I claim is:

1. A container formed of sheet material com-' prising a tubular body ofrectangular cross section, an end closure formed at its periphery withan uninterrupted inverted channel enclosing the end portion of the bodyand being sealed thereto, the sides of said channel adjacent each cornerbeing pressed together to form a corner rib, and the channelintermediate the corners being inclined inwardly.

2. A container formed of sheet material comprising a tubular body ofrectangular cross section, an end closure formed at its periphery withan uninterrupted inverted channel enclosing the end edge of the body andbeing sealed thereto, the sides of said channel adjacent each cornerbeing pressed together and sealed to form a corner rib, and the channelintermediate said corners inclining inwardly.

ISAAC L. WILCOX.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number

